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builtin/commit-graph.c: dereference tags in builtin 

When given a list of commits, the commit-graph machinery calls
'lookup_commit_reference_gently()' on each element in the set and treats
the resulting set of OIDs as the base over which to close for
reachability.

In an earlier collection of commits, the 'git commit-graph write
--reachable' case made the inner-most call to
'lookup_commit_reference_gently()' by peeling references before they
were passed over to the commit-graph internals.

Do the analog for 'git commit-graph write --stdin-commits' by calling
'lookup_commit_reference_gently()' outside of the commit-graph
machinery, making the inner-most call a noop.

Since this may incur additional processing time, surround
'read_one_commit' with a progress meter to provide output to the caller.

Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Taylor Blau 2020-05-13 15:59:44 -06:00 committed by Junio C Hamano
parent fa8953cb40
commit 5b6653e523
1 changed files with 21 additions and 3 deletions
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24
builtin/commit-graph.c
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@ -6,6 +6,7 @@
#include "repository.h"
#include "commit-graph.h"
#include "object-store.h"
#include "progress.h"
static char const * const builtin_commit_graph_usage[] = {
N_("git commit-graph verify [--object-dir <objdir>] [--shallow] [--[no-]progress]"),
@ -138,15 +139,24 @@ static int write_option_parse_split(const struct option *opt, const char *arg,
return 0;
}
static int read_one_commit(struct oidset *commits, const char *hash)
static int read_one_commit(struct oidset *commits, struct progress *progress,
const char *hash)
{
struct commit *result;
struct object_id oid;
const char *end;
if (parse_oid_hex(hash, &oid, &end))
return error(_("unexpected non-hex object ID: %s"), hash);
oidset_insert(commits, &oid);
result = lookup_commit_reference_gently(the_repository, &oid, 1);
if (result)
oidset_insert(commits, &result->object.oid);
else
return error(_("invalid commit object id: %s"), hash);
display_progress(progress, oidset_size(commits));
return 0;
}
@ -158,6 +168,7 @@ static int graph_write(int argc, const char **argv)
struct object_directory *odb = NULL;
int result = 0;
enum commit_graph_write_flags flags = 0;
struct progress *progress = NULL;
static struct option builtin_commit_graph_write_options[] = {
OPT_STRING(0, "object-dir", &opts.obj_dir,
@ -228,13 +239,18 @@ static int graph_write(int argc, const char **argv)
} else if (opts.stdin_commits) {
oidset_init(&commits, 0);
flags |= COMMIT_GRAPH_WRITE_CHECK_OIDS;
if (opts.progress)
progress = start_delayed_progress(
_("Collecting commits from input"), 0);
while (strbuf_getline(&buf, stdin) != EOF) {
if (read_one_commit(&commits, buf.buf)) {
if (read_one_commit(&commits, progress, buf.buf)) {
result = 1;
goto cleanup;
}
}
}
if (write_commit_graph(odb,
@ -247,6 +263,8 @@ static int graph_write(int argc, const char **argv)
cleanup:
string_list_clear(&pack_indexes, 0);
strbuf_release(&buf);
if (progress)
stop_progress(&progress);
return result;
}